Brazil’s National Traffic Council revised vehicle-glazing rules through Resolution 989, dated December 15, 2022 and published December 26. The resolution explicitly took effect January 2, 2023, separating its publication date from the start of the change.
The amendment allowed lower light transmission through glass outside the areas essential for driving, where the vehicle has external rearview mirrors on both sides. That mirror condition is part of the text and matters when describing the rear-glass change.
In an October 13, 2023 explanation, the Mato Grosso do Sul traffic department said the revision removed the minimum transparency requirement for rear-side windows and rear glass. The agency separately described a 70% transparency requirement for the front windscreen and front-side windows.
The department’s explanation also said reflective or opaque films remained prohibited. Resolution 989 separately addressed armored vehicles through a referenced technical standard. Together, those distinctions make this a targeted historical change to rear-glass requirements, rather than permission to apply any film to every window.
Sources & reporting notes
- Resolução CONTRAN No. 989, de 15 de dezembro de 2022 Ministry of Transport / CONTRAN · Source dated December 26, 2022
- Novas regras do Insulfim estão valendo desde janeiro Detran-MS · Source dated October 13, 2023
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